ICO Converter - PNG / JPG / SVG to Multi-Size .ico Online

Upload a square PNG (256 × 256 or larger), choose the ICO sizes you need (16, 32, 48, 64, 128, 256), and download a multi-resolution .ico file ready to drop into the root of your website as favicon.ico — recognised by every browser since Internet Explorer 6.

Windows desktop and shortcut icons traditionally include 16, 32, 48 and 256 pixel renditions in a single ICO so the OS can pick the right resolution per context. Modern Windows 11 prefers 256-pixel icons; older apps still need 32-pixel.

Yes. Upload SVG (which scales cleanly at every resolution), JPEG or WebP and the converter rasterises each requested ICO size from the original. SVG produces the sharpest results because every size is rendered fresh from vectors.

Yes. Transparent PNG, SVG and WebP sources keep their alpha channel in the ICO, so the icon blends cleanly into dark and light browser tabs, Windows themes and macOS dock backgrounds.

favicon.ico is a multi-resolution Windows icon recognised by every browser. Apple touch icons are 180 × 180 PNG files referenced by an HTML link tag, used by iOS and iPadOS when adding the site to the home screen. Most modern sites ship both.

Your logo is uploaded briefly to our server to generate the .ico file and is deleted automatically right after processing; we never store it or share it with third parties. If you need a strictly offline workflow for an unreleased logo, a desktop icon-editing tool is the safer choice.

"Single .ico" bundles every size you selected into one multi-resolution icon file — the standard choice for a website favicon.ico. "Separate (.zip)" instead exports one individual .ico per selected size, useful when a build pipeline or app packaging tool (Electron, Android, Windows installer) expects distinct icon files rather than one combined container.

Yes — Separate (.zip) mode only produces a ZIP when 2 or more sizes are selected; picking just one size in Separate mode downloads a single .ico instead, since zipping one file adds no value. Select at least two sizes if you specifically need the per-size ZIP output.

For a website favicon, keep the default sizes (16, 32, 48, 64, 128, 256) in Single .ico mode — one favicon.ico covers browser tabs, bookmarks and Windows shortcuts. For a native app icon set (iOS/Android/Electron), select all 8 available sizes and switch to Separate (.zip) so each resolution ships as its own file, matching what most app packaging tools expect.

The default selection (16, 32, 48, 64, 128, 256) covers the sizes browsers and Windows request most often, keeping the file small. Add 24×24 if you're targeting older Windows toolbar contexts, or 96×96 for some Linux desktop environments and higher-density app launchers — toggle any of the 8 available sizes on or off with a single click.

Sizes at or below 32 pixels are rendered with pixelated (nearest-neighbor) scaling in the 'Preview at each size' panel, which matches exactly how a real favicon looks in a tiny browser tab — smoothing it would make the preview misleadingly softer than the actual icon. Sizes above 32 pixels use normal smooth scaling since that's how they render in practice.